Diodes AP1681 - Manual (Page 11)

Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver AP1681
Jul. 2011 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
11
Typical Application
AP1681
+
+
+ ~
~
120Vac
60Hz
Dimmer
EE16
L=4.5mH
47nF
1A/600V
22nF
V REC
470k
560k
3.3k 1nF
560k
0.47 F
BAV20
INV
MULT
CS
ZCD GND
VCC
DIM
FB
CS
GND
OUT
VCC
47k
11T
3N60
47
100pF
630V
V
BUS
6.8 F
350V
RD RI
COMP
GD
EE16
L=1.43mH
115T
2R
AP1661
330nF
16k
680k 680k 680k
330k 330k BAV20
47k
14T
=0.3 φ
10k
220k
270k 0.47 F
2.2nF
630V
68k
95T
0.16 × 3
SR
3A/150V
220 F
35V
19T
=0.4
TIW
φ
27k
V
OUT
FR105 EF20
L=2.54mH
4N60
100
3.0k
1.3R
Y2
1.5nF 3kV
100k
16k 1 F
0.47 F
51k 100k
AP1681 LED Application:
Dimmable LED Driver
Input: 120Vac/60Hz
18W Power
Output: 8 LEDs, 26V
LOAD
5.0mA to 550mA
32 V
OPEN
Figure 17. Typical Application of AP1681